Richard Feynman was both one of the greatest scientists of the twentieth century (what the heck, one of the greatest scientists ever!) and was also a complex and not always likeable character. This fat biography isn’t Gleick’s best book, but it does make a better job of integrating the story of Feyman’s life and scientific work than t he competing volume by John and Mary Gribbin which tends to alternate chunks of history and chunks of science. Gleick makes you work harder to understand what’s going on, but on the whole it’s worth the work. He’s less successful when he gets all philosophical – for instance the rather tedious section where he tries to analyse genius. (He will also get up the nose of plenty of readers by dismissing, for instance, Mozart’s genius. I’m not that fond of Mozart’s music myself, but can’t fail to recognise the genius of someone who could go to the Sistine Chapel and hear Allegri’s amazing Miserere (the chapel choir’s secret weapon at the time) once, then ...